Building-block.



P. D. DIAMOND.

BUILDING BLOCK.

AYPLIOATION FILED 1m, 1910.

990,1 19. Patented Apr. 18, 191 1.

,iALMER DIAMOND, OF CHICAGO, ILLINOIS, ASSIGNOR '10 DIAMOND CONCRETE MACHINERY COMPANY,

OF CHICAGO, ILLINOIS.

BUILDING-BLOCK.

To all whom it may concern:

Be it known that I, PALMER D. DIAMOND,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and pseful Improvements in Building-Blocks, of which the following is a specification.

The invention herein disclosed is a modifi-, cation of or improvement on the buildingr block shown and claimed in mypending application No. 510085, filed July 28, 1909.

The invention relatcs'to buildin blocks, and particularly to blocks molde out ofconcrete or cementitious materials, and has for its object to provide blocks of a novel and improved form and construction, which will facilitate building the same in a wall. and will provide an improved locking engagement between the blocks at the joints.

The blocks are constructed with recesses whiclrreceive projections on other blocks to lock the parts -to ether against either lateral or longitudinal isplacement and to give'a I a surface which will confine themortar to the joints, and will enable the blocks to be accurately set in line and level, so that an ordinarily intelligent laborer can lay the locks, and the services of skilled artisans will not be required. The blocksare hollow and have the advantages incident to hollow blocks.

The invention is illustrated in the accompanying drawings, in which--.

Figure 1 is a perspective view of partof a wall constructed of the blocks; Fig. 2 is a vertical section thereof on line 2--2 of Fig. 1; Fig. 3 is a. perspective view of one of the blocks; and Fig. 4; is a similar view of the same block, inverted.

Referring specifically to the drawilws, (3 indicates a block molded with vertica recesses, or hollows, 7 therein. At the front and rear edges of this block on the top (or bottom) and one end thereof, it is provided with ribs or ridges 8 projecting in plahes parallel to the face and back of the block, and extending along two sides otnthe same,

' that is, the top or bottom and one end. Those ridges produce therebetween a central space or recess 9, extending around two faces of the block. The block is further provided with a rabbet 10 extending around two sides of the edge of the face thereof and forming a space for tuck pointin As shown in Fig. 4, said block is provided on its bottom (or top) with a ridge or projecting Specification of Letters Patent.

Application filed January 4, 1910. Serial No. 536,327.

Patented Apr. 18, 191.1.

portion 13, and on its other end with a ridge or rib 13 which ridges are of proper size and shape to fit in the recess ,9 of the adjacent blocks, and so interlocked therewith, to prevent lateral displacement. v v

The recesses 9 in the block will be made somewhat deeper than the ribs 1313, so that space will be afforded for the mortar in'thc horizontal and vertical joints and the ribs 8 at the front and back of theblock will fit in close contact with the adjacent blocks at the depressions 14 extendin the block, and produced ythe ridges 13 13. N o mortar will be placed between the surfaces 8 imd 14, but all the mortar will be confined'in the recesses 9, thereby preventing the mortar being pressed out at the joints and thus defacmg the surface of the blocks. With an ordinary block having a .flat surface, when the mortar is. spread, it

along the edge of often runs out over the face of the'blocks,

and defaces the same.

At each end of the'longitudinal or horizontal depressions 9 is a cross rib or piece 15 the top of which is flush with the ridges 8, and the ridge 13 on the opposite side of the block has cross depressions 16, which, when the blocksare built into a wall, receive or fit over the cioss ribs 15 at the meetin ends' of adjacent blocks, and so look the b ocks together against longitudinal movement or separation. Also, a rim 17 is formed around each hollow 7, on the side of the block having the recess 9, and the ribs 13 rest on these rims so that when liquid mortar or cement is plowed in the recess it will not run down into the hollows.

The interlocking) projections and recesses of the respective locks enable them to. be built in a line. Each course must necessarily be in line with the adjacent course, since the projections and recesses match closely,

and it is impossible to set the blocks out of labor to beused in setting the blocks, and the interlocking projections increase the Qbviousl the faces ofthe blocks may be' ornamente or deslgned, as desired. As

' line with each other. This enables unskilled strength of the wall as compared to lain will be apprehended, whenthc blocks are laid in the wall, theyare set so that the pro? ectl'ons of one block will engagewith recesses on the oiher. The rabfsei; at 10 may be filled with cemenn fez? tuck pointing, if

desired. The hollows 7 match in the respec-- tive blacks to form confiinuou's vertical air spaces in the all.

, What I claim as new .is: v

A building block having vertical holiows crass ribs 1-5 extendm bet-Ween said wi es at the ends of the black, with Feeesses 9 befiween saiyidges .side 01?? the block havingthe recess 9,

ndg es 13 13 extendmg aleng the cpgosite'l 7, and longitudinal ridges 8 amending along ip said sideand end of fzhe block, raised, rims 17,E-I01X1d the'edge of'saldhollows on the 1' and ea l- 112 side and and of the bleak, and afiapted ta fit in the correepandmg recess of an wigacem black szud 3315.29 13 hzwm 1 cross receesee l6 $50 receive the cross rib 15 the iiige 13 be ing (If less height than fiche fiepth of the we cess 9, t0 farm a space fer mortar between adjacent Mocks {LIE-T} she rims 17 beingof proper height to agains'a iihe ridge 13 of adjacent block, En 'tescimeily whereef I afi'ir; my signature in presence of twe witnesses,

PiELIACIZE', D. DEAMGND, I Witnesses: I

NELLIE Esme-x0e, WALTER F. EKOBIJNA 

